Palladacycle‐phosphine catalyzed chemoselectivealkylation of aminoacetophenones was achieved by using an environmentally friendly hydrogen auto transfer strategy.
通过使用环保的氢自动转移策略,Palladacycle-膦催化氨基苯乙酮的化学选择性烷基化。
Iridium catalysed chemoselective alkylation of 2′-aminoacetophenone with primary benzyl type alcohols under microwave conditions
作者:Shailen Bhat、Visuvanathar Sridharan
DOI:10.1039/c2cc31055d
日期:——
2â²-Aminoacetophenone was chemoselectively alkylated with a range of substituted benzyl, heteroaryl alcohols to afford either the corresponding C- or N- alkylated products in good yield.
1,3-Disubstituted-2-carboxy quinolones: highly potent and selective endothelin A receptor antagonists
作者:Jean-Luc Haesslein、Isabelle Baholet、Michel Fortin、Alain Iltis、Jean Khider、Anne Marie Periers、Christine Pierre、Jean-Paul Vevert
DOI:10.1016/s0960-894x(00)00264-x
日期:2000.7
The design, synthesis, and in vitro biological activity of a series of 2-carboxy quinolone antagonistsselective for the endothelin A receptor are presented. Introduction of a second acid group in position 3 of the quinolone ring increases dramatically the selectivity for ET(A).
A Novel Approach to
<i>N</i>
‐Tf 2‐Aryl‐2,3‐Dihydroquinolin‐ 4(1
<i>H</i>
)‐ones via a Ligand‐Free Pd(II)‐Catalyzed Oxidative Aza‐Michael Cyclization
作者:Young Min Kim、Hyung‐Seok Yoo、Seung Hwan Son、Ga Yeong Kim、Hyu Jeong Jang、Dong Hwan Kim、Soo Dong Kim、Boyoung Y. Park、Nam‐Jung Kim
DOI:10.1002/ejoc.202001425
日期:2021.1.26
one‐pot ligand‐free palladium‐catalyzed α,β‐dehydrogenation of ketone and sequential aza‐Micahel addition was developed, which provides N‐Tf 2‐aryl‐2,3‐dihydroquinolin‐4(1H)‐ones in moderate to good yields. This catalytic reaction provides simple and mild reaction conditions, a wide scope of substrates to biologically interesting N‐heterocycles.
Copper-Catalyzed Chemoselective Cyclization Reaction of 2-Isocyanoacetophenone: Synthesis of 4-Hydroxyquinoline Compounds
作者:Qing Yuan、Weidong Rao、Shun-Yi Wang、Shun-Jun Ji
DOI:10.1021/acs.joc.9b02903
日期:2020.1.17
afford 4-hydroxyquinolines chemoselectively is described. The transformation proceeds through enol tautomerism and a subsequent C-C bond formation. Compared to previous methods, this study provides a new protocol for the construction of 4-hydroxyquinoline compounds from functionalized isocyanides under mild conditions.